- Air flow volume - Differential pressure, Stagnation pressure and Static pressure measurement - Instant/ Avg/ 2/3 V max flow measurement - Velocity m/s, f t/min - Temperature, Humidity & Atmospheric measurement - Calculate Dew point temperature,Wet bulb temperature, Wind chill temperature, Humidex temperature and Heat index temperature - Data hold & Maximum / Minimum / Average function - Manual data memory and read function : 99 sets - Auto data memory : 4GB microSD card (3142U) - USB interface (3142U)